.. _CTAN: http://www.ctan.org/tex-archive/help/Catalogue/entries/dot2tex.html
.. _easy_install: http://peak.telecommunity.com/DevCenter/EasyInstall
.. _Graphviz: http://www.graphviz.org/
.. _PSTricks: http://tug.org/PSTricks/main.cgi/
.. _PGF/TikZ: http://www.ctan.org/tex-archive/help/Catalogue/entries/pgf.html
.. _MIT: http://www.opensource.org/licenses/mit-license.php
.. _Python: http://www.python.org
.. _pyparsing: http://pyparsing.wikispaces.com/
.. _pydot: http://dkbza.org/pydot.html
.. _preview: http://www.ctan.org/tex-archive/help/Catalogue/entries/preview.html
.. _preview-latex: http://www.gnu.org/software/auctex/preview-latex.html
.. _AUCTeX: http://www.gnu.org/software/auctex/
